Thank you all for the advice. My choke is working as advertised and my plug wires are good. Think I found the problem. I noticed that the secondary nozzles were constantly dripping fuel while the engine was idling, and then they continued to drip after the engine was turned off. Took out the sight plug for the secondary float, and fuel came running out. Adjusted the float and the dripping stopped. Rich smell went away and she started running normal again. However, I might have a new problem. First off I tore the seals for the float adjustment while messing with it, so I will have to replace them. The fuel level in the secondary bowl is now too low. It should be just below the sight hole, but it is well below. However, the float adjustment doesn't seem to do anything to the fuel level. I turned the adjustment nut five whole turns counter clockwise (per the manual) to raise the fuel level, but it didn't do anything. Are the floats easy to break? I have a Holley 4160.